Metal Clay Today http://www.metalclaytoday.com/ is relatively new and a really welcome addition to the gathering number of publications on and offline about all things metal clay. You can sign up to receive the mag on their site
In their own words
'Metal Clay Today is devoted to giving recognition, encouragement and a voice to the many gifted artisans, teachers and enthusiasts in the metal clay world.'
They run competitions and the current one is all about mixed media work, a theme close to my heart ( did I get my act together to submit- er NO!)
However many did and the entered work is amazing, I'm particularly impressed by the quality of the photography. You can vote for your favourite. http://www.metalclaytoday.com/mmm_vote.html Mine's a space piece by UK's Lisa Cain ( but I shouldn't really tell you that!!)